On May 18, 1944, soldiers of the 2 Polish Corps hung the Polish flag on the ruins of the Monte Cassino monastery.
The date of 11 November 1918, being the day on which Poland regained its independence, is a symbolic date. Exactly on that day, an armistice ending the First World War was concluded in a wagon in the forest of Compiègne.
On 30 January 1930, the Politburo of the Central Committee of the All-Union Communist Party (Bolsheviks) decided to launch the largest resettlement operation in the entire history of the Soviet Union, still referred to today as the 'kulak deportation'.
On 4 July 1928, the founding congress of the Sybiraks' Association was held at the Warsaw University of Technology.
Father Jan Cieplak was auxiliary bishop of the Mogilev archdiocese, at that time the largest Roman Catholic archdiocese in the world, covering the whole of Russia up to Sakhalin.
On 18 March 1921, the treaty ending the Polish-Bolshevik war (the so-called Treaty of Riga) was signed in Riga.
